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- Jan 10, 2011
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- [Formerly] Khartoum, Sudan.
System Name | 192.168.1.1~192.168.1.100 |
---|---|
Processor | AMD Ryzen5 5600G. |
Motherboard | Gigabyte B550m DS3H. |
Cooling | AMD Wraith Stealth. |
Memory | 16GB Crucial DDR4. |
Video Card(s) | Gigabyte GTX 1080 OC (Underclocked, underpowered). |
Storage | Samsung 980 NVME 500GB && Assortment of SSDs. |
Display(s) | ViewSonic VA2406-MH 75Hz |
Case | Bitfenix Nova Midi |
Audio Device(s) | On-Board. |
Power Supply | SeaSonic CORE GM-650. |
Mouse | Logitech G300s |
Keyboard | Kingston HyperX Alloy FPS. |
VR HMD | A pair of OP spectacles. |
Software | Ubuntu 24.04 LTS. |
Benchmark Scores | Me no know English. What bench mean? Bench like one sit on? |
That's the amusing thing about this issue. Nvidia has been clear that 32 bit CUDA will not be supported on Blackwell since 2022. And they have started deprecating it long before that. What's amusing is that no one seemed to have added 1 and 1 together and figured this would also mean ye ol' PhysX won't also run on Blackwell until the latter hit the shelves.Short answer, yes. 32bit Physx is all legacy code at this point. No one is using it. More advanced and 64bit versions had replaced the legacy code many years ago. This is why NVidia has dropped support for it.
But I suppose this should also be blamed on Nvidia. Failing to communicate the repercussions to non-technical consumers was obviously stupid and short-sighted.
Man, KSP did a number on you, hasn't it?cpu physx is literally baked into Unity as the default physics engine, for better or for worse (mostly worse because yes it is singlethreaded dogshit in cpu collidable form).

Recent Unity physics engines -including PhysX-powered ones- are multithreaded. Although Unity itself is (or was, till the last time I checked) notoriously single-threaded, so that could be a bottleneck. Perhaps things got better since they started getting serious with ECS/DOTS tho...
Collisions can be paralellized, and afaik, GPU physx supports it. Interaction of cloth, fluids and debris with the player/environment was a major marketing point for GPU-powered PhysX games. Remember Batman Arkham Asylum's smoke and flying paper/trash?(gpu physx does not support collisions to my knowledge)